should have read
the first entry in row x …
where x is the index of the number in list rows,
and n is that number
Am 27.01.22 um 01:25 schrieb Hauke Rehr:
rows says: the first entry in col x is the n-th entry in values
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rows says: the first entry in col x is the n-th entry in values
row 0 0th (if any)
row 1 2nd (if any)
(so in row 0 we had 2 values)
row 2 3rd (if any)
(so in row 1 we had 1 value)
row 3 5th (if any)
(so in row 2 we had 2 values)
row 4 5th (if any)
(so in row 3 we had 0 values)
etc.
Am 26.01.22 u
Hi,
I tried out the add-on, it looks very promising!
After managing to install ArrayFire (apparently the logical "apt install"
didn't work), I tried the basic tutorial and found the following line
causes J to segfault when using the opencl backend:
display_jaf_ afaiNB. get AF text display
Unfortunately, Pawel wants 2 f d to be 3 11. However, I find that 3 f d IS 3
11.
Other results are a bit strange, too:
4 f d
2 12
8 f d
|index error: f
| y({~,])x i.~+/\(i.@#~:i.~)y
I wasn’t going to post my effort, but it might interest Pawel. This version
works on the slightl
Execution error sounds possibly overbearing. But I guess if it's
limited to scripts, and lines which would produce a display result of
a non-noun (the sort of thing influenced by 9!:3) if the line were
executed outside of a script, that that would be ok.
That said... I also kind of like the idea t
No, it's an execution error. But colorizing would be a good idea.
Henry Rich
On 1/26/2022 5:13 PM, Raul Miller wrote:
Colorized? That would be nice.
Thanks,
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Colorized? That would be nice.
Thanks,
--
Raul
On Wed, Jan 26, 2022 at 5:09 PM Henry Rich wrote:
>
> Help is on the way in the next beta, sequences that don't produce a
> noun will be flagged.
>
> Henry Rich
>
> On 1/26/2022 5:07 PM, Raul Miller wrote:
> > And.. a problem was that gllines
Help is on the way in the next beta, sequences that don't produce a
noun will be flagged.
Henry Rich
On 1/26/2022 5:07 PM, Raul Miller wrote:
And.. a problem was that gllines was not executing.
(gllines <.@(1 2 3 4) forms a verb, but does not execute gllines.)
Also, there's an issue where
And.. a problem was that gllines was not executing.
(gllines <.@(1 2 3 4) forms a verb, but does not execute gllines.)
Also, there's an issue where the isidraw does not update when the jqt
session window has focus,.
FYI,
--
Raul
On Wed, Jan 26, 2022 at 2:55 PM Raul Miller wrote:
>
> Ok, so it
I did not have any problem installing on win10. It seems win11 is
tightening the rules. You will need to take some extra step to override the
security check.
On Wed, Jan 26, 2022 at 3:35 PM 'Mike Day' via Programming <
programm...@jsoftware.com> wrote:
> Just about downloading ArrayFire for Windo
-.@~: gets a mask of duplicates, I. then their indices.
With them you can get a list of (index, value) pairs:
((],.{~) I.@:-.@~:) a
5 2
8 3
11 3
12 2
With 0 ({ (],.{~) I.@:-.@~:)) a you can 0-index into this list.
If you are only interested into the first duplicate of a value,
you could filter d
As Henry pointed out,
do take a look at [1] for how to approach this in J
If you want to understand my solution,
just try it step by step.
I repeat it here, with a bit of litter removed:
f =: {{ (,~ {&y) {. I. (>: x) e."1 +/\ =/~ y }}
NB. where does each number occur?
=/~ d
1 0 0 0 0 0 0
Here's a variation that works:
d=: 1 _1 2 3 4 2 5 6 3 8 10 3 2
f=: {{y ({~,]) x i.~ +/\(i.@#~:i.~)y }}
1 f d
2 5
2 f d
3 8
The phrase (i.@# ~: i.~) finds the locations of duplicates
(i.@#~:i.~) 1 _1 2 3 4 2 5 6 3 8 10 3 2
0 0 0 0 0 1 0 0 1 0 0 1 1
And, +/\ computes a running sum
It should be of course
1 f d
2 5
Would be great if you could decompose your solution and the idea behind the
solution. Many thanks.
Cheers,
Pawel
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For information about J forums see http://www.jsoftware.com/forums.htm
Just about downloading ArrayFire for Windows 11...
I tried downloading the two exe files, one for W11, which failed, and then
W10, also a failure. The failures both reported inability to verify.
My son has just commented that it’s a common M/S feature... Anyone else seen
this behaviour?
Ok, so it's not that gllines on isidraw completely fails on my machine.
That's good to know.
Thanks,
--
Raul
On Wed, Jan 26, 2022 at 2:25 PM Henry Rich wrote:
>
> Dissect uses isidraw and gllines on Jqt.
>
> Henry Rich
>
> On 1/26/2022 11:58 AM, Raul Miller wrote:
> > http://www.rosettacode.o
The signature for af_add:
af_add (af_array *out, const af_array lhs, const af_array rhs, const bool batch)
with lhs and rhs as parameter names, I don't think J users would get lost if
they called the "cover function" dyadically the same way they call +
I'm not suggesting altering any existing c
Use the ideas in
https://code.jsoftware.com/wiki/Essays/Progressive_Index-Of .
Henry Rich
On 1/26/2022 1:37 PM, Pawel Jakubas wrote:
Dear J enthusiasts,
I wonder how to elegantly implement dyad f that takes as x=1,2,3... and y
vector and returns nth duplicate value with index of that occurenc
Dissect uses isidraw and gllines on Jqt.
Henry Rich
On 1/26/2022 11:58 AM, Raul Miller wrote:
http://www.rosettacode.org/wiki/Fractal_tree#J
I had updated the fractal tree implementation to work with j903. (The
previous code did not work with any implementation of J which I have
installed on m
Maybe this is what you want (but it’s not elegant)
f =: {{ (,~ {&y) {. I. ( (>: x)&e."1) +/\ =/~ y }}
1 f d
2 5
2 f d
3 11
just a quick and dirty working solution
(if 2 5 is the correct answer to 1 f d)
Am 26.01.22 um 19:37 schrieb Pawel Jakubas:
Dear J enthusiasts,
I wonder how to e
I don’t understand why it’s index 2 (first occurrence of 2)
but 11 (third occurrence of 3)
Am 26.01.22 um 19:37 schrieb Pawel Jakubas:
Dear J enthusiasts,
I wonder how to elegantly implement dyad f that takes as x=1,2,3... and y
vector and returns nth duplicate value with index of that occurenc
Dear J enthusiasts,
I wonder how to elegantly implement dyad f that takes as x=1,2,3... and y
vector and returns nth duplicate value with index of that occurence:
d=: 1 _1 2 3 4 2 5 6 3 8 10 3 2
NB. the earliest first duplicate is for 2 and index 2
1 f d
2 2
NB. the earliest second dupl
Sadly, glpaint_jgl2_'' does not change anything.
Does it work for you?
(In other words, is this a problem specific to my machine, or my type
of machine?)
Thanks,
--
Raul
On Wed, Jan 26, 2022 at 12:04 PM bill lam wrote:
>
> Try put an glpaint'' after the last gllines...
>
> Untested
>
> On T
Pascal,
Interesting ideas on arrayfire args.
I will probably resist the idea of making dop verbs dyadic. I think it
better to stick closer to the arrayfire syntax.
But it makes sense to avoid unnecessary boxing.
af_add_jaf_ afad;afbd NB. works
af_add_jaf_ afad,afbd NB. fails, but probably s
Try put an glpaint'' after the last gllines...
Untested
On Thu, 27 Jan 2022 at 12:59 AM Raul Miller wrote:
> http://www.rosettacode.org/wiki/Fractal_tree#J
>
> I had updated the fractal tree implementation to work with j903. (The
> previous code did not work with any implementation of J which
http://www.rosettacode.org/wiki/Fractal_tree#J
I had updated the fractal tree implementation to work with j903. (The
previous code did not work with any implementation of J which I have
installed on my mac -- apparently Apple's changes mean that j504 and
j602 no longer function on this machine.)
Apologies for the rough start. The development was done in linux with
arrayfire installed and not enough attention was paid to other platforms or
new users. The addon has been updated.
Raul: You were on macOS, which had not been tested at all. It should work
now if arrayfire is installed in folder
An interface suggestion would be to transform all verbs that currently take 2
boxed arguments into unboxed dyad arguments.
this can be done by adding the adverb (@:;) for the dop class verbs. and
(@:;~) for the reduce class verbs such that the operating axis is the x term.
The reduce class co
Hi Bob,
Thanks! Will do... lots to learn in this fascinating language!
Kind regards,
Stan
On 2022-01-25 21:34, 'robert therriault' via Programming wrote:
Hi Stan,
If you have looked at the shader demo in Jqt Help | Studio | Qt
demos... there is a source button that will show the sourc
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